Nortel Networks 1000S - Manual (Page 24)

Page 24 of 44 System architecture
553-3031-010 Standard 3.00 August 2005
Hardware architecture
A typical CS 1000S system consists of the following major hardware
components:
• NTDU30 Call Server
• NTDU27 Signaling Server
• NTDU14 Media Gateway 1000S (MG 1000S)
• NTDU15 Media Gateway 1000S Expander (MG 1000S Expander)
• IP Phones
• customer-supplied Ethernet Layer 2 switch
• Power over LAN unit (optional)
Figure 2 on page 25 shows the major hardware components installed in a
customer-supplied 19-inch rack.